Weed Control by Species
Records herbicide and mechanical control methods, products, and satisfaction ratings for invasive weed species in Hawaiʻi, contributed by multiple partner organisations.
Triclopyr
Group 4Synthetic auxin · some products labelled for aquatic sites
Best on Acacia mearnsii, Acacia mangium, Ageratina riparia, Ageratina adenophora
Glyphosate
Group 9EPSP synthase inhibitor · some products labelled for aquatic sites
Best on Ageratina riparia, Ardisia crenata, Axonopus fissifolius, Cortaderia selloana
Imazapyr
Group 2ALS inhibitor · some products labelled for aquatic sites
Best on Ardisia elliptica, Cecropia obtusifolia, Coffea arabica, Grevillea robusta
Aminopyralid
Group 4Synthetic auxin · no aquatic-labelled products
Best on Cryptomeria japonica, Delairea odorata, Leucaena leucocephala, Morella faya
Sulfometuron-methyl
Group 2ALS inhibitor · no aquatic-labelled products
Best on Pterolepis glomerata, Chromolaena odorata
Fluazifop-P-butyl
Group 1ACCase inhibitor · no aquatic-labelled products
Best on Axonopus fissifolius, Paspalum conjugatum, Melinis minutiflora
Aminocyclopyrachlor
Group 4Synthetic auxin · no aquatic-labelled products
Best on Acacia confusa, Toona ciliata, Leucaena leucocephala, Corymbia citriodora
Metsulfuron-methyl
Group 2ALS inhibitor · no aquatic-labelled products
Best on Hedychium gardnerianum
| Species | Family | Common Name(s) | Organization | Control Technique | Cocktail | Satisfaction Rating | Size class (in regards to species) | Habitat Type | Environmental factors | Trial or Observation? | Last Updated | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hedychium gardnerianum | Zingiberaceae | Kahili ginger | NEPM | cut | .75g/24oz + 35ml surfactant (FCO or MSO) | successful. Recommended method | 2016-10-31 | + | ||||
| Hedychium gardnerianum | Zingiberaceae | Kahili ginger | KMWP | cut | .2% Escort, .5% Crop oil, 96.5% water, 3% MSO | more than moderate satisfaction | WET | OBSERVED | + | |||
| Hedychium gardnerianum | Zingiberaceae | Kahili ginger | OANRP | cut | 1 gram Escrot per 24 oz of water | moderate satisfaction | WET | OBSERVED | + |
Kept by UHELP. Ratings and notes are the reporting organisation’s own. For herbicides, always follow the product label — the label is the law.